We then say that the non–autonomous IFS \(\Phi ^{(n)} =\lbrace \Phi _i\rbrace _{i\in I^{(n)}}\) , \(n\ge 1\) , is of subexponential growth.
We are interested in the Hausdorff dimension \(\text{{\rm HD}}(J)\)  of the limit set \(J\)  of this system, and it is shown in [1]} that this dimension is given by
a Bowen's Formula provided the system \(\Phi \)  has the following properties.
